Railway truck



Jan- 25 1927' Bg v. JoHNsoN RAILWAY TRUCK. 4

Filed Jan.18, 1925 2 Sheets-Sheet 1 /A/VA/romcome lf. H. JoHMsO/v. #uw

7W 4 f77-nemen Jan- 25 1927 B. v. H. JoHNsoN RAILWAY TRUCK Filed Jan.18, 1926 2 'sheets-sheet 2 Patented. Jan. 25, 1927.

UNITED STATES PATENT OFFICE.

BOONE V. E. JOHNSON, OF ST. LOUIS, MISSOURI, ASSIGNOR T COMMONWEALTHSTEEL COMPANY, OF GRANITE CITY, ILLINOIS, A CORPORATION OF NEWJERSEY.

RAILWAY TRUCK.

Application led January 18, 1926. Serial No. 81,903.

My invention relates to an improvement in railway trucks and has for itsobject the iinproved cushioning of the load with reference to thewheels.A Drawings.

In the drawings- Fig. 1 is a plan view of a truck embodying myinvention.-

Fig.'2' is a side elevation of the same, the sidewall being broken awayand parts being shown in section.

Fig. 3 is aplan view of the truck illustrating the location andarrangement ofthe spring elements and equalizer bars when the auxiliarsprings are omitted; e. g., as used inv freigiit car or other purposeswhere the utmost resiliency or riding quality is unnecessary. -Fi 4: isa sectional view of the construe# tion lllustrated in Fig. 3, taken onthe line 4r4 of Fig. 3.

Fig. 5 is an end view of one of the hollow wheel pieces of the truck.

Deamptzon. While I have illustrated the embodiment of my invention in asix-wheel truck, it is equally eiiicient in trucks of two wheels or anymultiple thereof.

The drawings depict a truck-frame A of usual construction, having at itssides hollow wheel-pieces B with depending pairs of pedestals 6-6 forthe accommodation of journal-boxes 7, the top of each of saidjournalboxes 7 having a vertical-ly lprojecting rib 8 for contact or'engagement with the lower f face of the standard irregularly curved (or.off-set) equalizer-bar 9 (see Fig. 2) o r standard straightequalizer-bar 10 (see Fig. 4).

On top of these equalizer-bars 9 or 10, and

interposed between said equalizer-bars 9 or` 10 and the truck-frame A Iprovide my primary spring-elements C," here illustrated asleafsprings-,/each having a .spring-band 11 fitting at its top looselybetween lugs or stops 12--12` depending in pairs from the truckframe Aand serving to prevent longitudinal displacement of the spring-bands Iprovide any eicient antiffrictlon means, interposed between the 'ends(or one end) of the spring-elements C andA the equalizerbar 9 or 10 uponwhich it rides, and for that purpose have shown in the drawingsfrictribution for freight cars and the like. For

passenger c ar service where the utmost rid,

Ving quality is desired I' employ an auxiliary .spring-element D, hereillustrated as a helical spring, interposed between the primaryr springelement C and the equalizer-bar 9, its base eing mounted on the bar 9and its top carrying a grooved cap 14,.the groove in which is arrangedto recelve the bottom of the spring-band'll.

My invention may be embodied in any form of truck-frame and may bemodified V and varied as to its structure and positioning in. many wayswithout departure from my actual invention as defined in theclaims ofthis application.'

@Zaijma I claim 1. In a railway truck, a truck frame havingjournal-boxes; equalizer bars mounted on said boxes; semi-ellipticspring elements interposed between the truck frame and the e ualizerbars, havingsliding engagement with said equalizer bars; and helicalspring elements interposed between the semi-'elliptic spring elementsandthe equalizer bars.

2. In a railway truck, in combination, a truckframe; journal boxesmounted in said frame; equalizers mounted on said journalv boxes; leafsprings supporting lthe truck and contacting at their ends with saidequalizers;

and helical springs interposed between the said equalizers and said leafsprings.

3. In a railway truck` in combination; a truck frame having hollow-wheelpiecesg' journal boxes mounted in said frame; equalizers supported o nsaid journal boxes; leaf springs mounted vupon said equalizers andbavingslidable engagement therewith, said equalizers and leaf springsbeing mounted within said hollow wheel pieces; a spring band mounted voneach of said leaf springs:

.spring elements interposed "between said equalizers and said leafsprings, each of said spring elements arranged to contact w1th thespring band ofthe opposing leaf spring.

4. Inia railway truck the combination of spring elements interposed'between the leaf a truck frame;l journal Vrboxes mounted in springs andthe eralzerbars; anda voved said frame; equalizers supported onv saidcapvmounted .at t e top of each 01E t e last- ]'ournal boxes; leafsprings sup orting the 11a/med spring elements, its groove arrangedweight of the frame and mounte -upon said to receive the bottomof'one ofsaid :spring l5 equalizers and having sliding engagement.v bands. l jwith said equalizers at on'e or both ends; In testimony whereof I"havehereuntouafa spring band mounted on each of said leaf xed my signature.springs;v stops depending from the truck 10 frame vend engagmg'saldvspring bands; v l vBOONE V.YI[.`JOI-INSOIIT..` i

